Improvement in stone and glass polishing machines



2Sheets--Sheet1. J. MEISSE; Stone and Glass Polishing-Machines. No.140,937; Patented Ju|y15,1873.

Inventor.

Witnesses AM. PHUTO'LITHDGRAPIIIL ca MK (ussanns Pkacrss) 2Sheets--Sheet 2,

v J. MEISSE.

Stone and Glass Polishing-Machines.

Patented July 15 Nil 10,937.

Inventor.

AM. PHOTO-LITHOERAFHICCO. Mflosamwmoxss) UN TED STATES JOSEPH lI/IEISSE,or new ALBANY, INDIANA.

IMPROVEMENT IN STONE AND GLASS POLISHING MACHINES.

Specification forming part of Letters Patent No. 140,937, dated July 15,1873; application filed I April 3, 1873.

' polishing plateglass, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawings, in which-Figure 1 is a side elevation, and Fig. 2 a plan view of my machine. Fig.3 represents parts of the device whereby the glass is polished.

A A represent two tables, of any suitable dimensions, each table turningaround a center on a platform, B. These tables may be made, the lowerpart, of cast-iron or wood,

and the surface, on which the glass lies, also of Wood or of cement. Thelatter is preferable. The tables are held stationary by means of wedgesa 6t upon their respective platforms while the glass is being polished.By removing the wedges the table may be turned so as to bring thoseparts of the glass which have only been touched by the larger blocks ofthe polishing device under the smaller blocks of the same. Between thetables A A and above the same is hung a swinging frame, 0, the lowerpart of which may extend down into the room or cellar below the one inwhich the tables are situated, and is there, by a pitman, D, connectedwith a crank-wheel, E, on a shaft, b, this shaft and wheel beingrevolvedby any convenient or desired power. By this means the frame 0obtains a swinging motion back and forth. On each side of the swingingframe 0, at about on a level with the tables A, in suitable bearings, isplaced a horizontal shaft, 11, to which the polishing devices areconnected. Each of these devices is composed of a series of smallblocks, Gr G, large blocks H H, and metal frames I I, forming a chain,as shown. The small blocks G Gr are placed in the frames I, and theseframes, as well as the larger blocks H H, are notched, as shown in Fig.3, and joined into each other. Each chain thus formed is connected by aframe, J,

to the shaft cl, said frame being provided with a sleeve or socket, 6,through which said shaft passes. There may be as many of these chains asdesired on each shaft, and they are connected together and held theproper distance apart by a perforated metal bar, f, fitting over lugs '5'i, at the inner ends of the frames J the glass. The blocks have abackward and forward motion on the glass, caused by the swinging frame0, and they have also a side motion, caused by the following means: Theshafts d d have screw-threads cut on them, as shown in Fig. 2, and oneof the cylinders or sleeves e for each shaft is provided withcorresponding female screw-threads, so that by rotating the shaft in onedirection the blockchains will gradually move toward one side of thetable at the same time as they are being moved back and forth by theswinging frame, and by rotating the shaft in the opposite direction theblock-chains will gradually move toward the other side of the table. Onone end of one of the shafts cl is secured a double toothed wheel, K,the two sets of teeth on which stand in opposite directions. On the sameshaft, and around the wheel K, is placed a T-shaped frame, L, carrying aheavy roller, M, at the outer end of the long arm, and in each of theshorter arms is pivoted a hook or pawl, m, to operate on thedouble-toothed wheel, K, according to the side on which the roller L isplaced. The opposite ends of the two shafts d d are connected by meansof cogwheels 12 02. On the floor of the room in which the tables A A arelocated are placed and secured two steep inclines, N, so that when the.frame L with the roller M is thrown to either side, and the frame 0 inmotion, the roller M will travel up and down one of said inclines, and,by means of the pawl an, then at the top turn the toothed wheel K,whereby the screwshafts d d are revolved and the block-chains on eachtable moved to one side. By throwing the frame L over on the other sidethe other pawl will operate to rotate the screwshafts in the oppositedirection and move the block-chains to the other side of the tables.

When the glass is taken from a table the blocks G and H and frames I aretaken off and the frames J raised up and tied to the swinging frame 0,so as not to be in the way or interfere with the workman when taking offor placing glass on a table while the machine is in motion.

More than one swinging frame may be connected with the shaft b, so as torun more than two tables, in the same manner as the first two with thesame engine.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The block-chains herein described, consisting of the blocks G G and HH and frames 1, constructed as described, and connected by means of aframe, J, with the screw-shafts 01, substantially as and for thepurposes set forth.

2. The eombination,with the screw-shafts d d, of the double cog-wheel K,frame L with pawls m m, and roller M, and the double incline N,substantially as and for the purposes herein set forth.

3. The combination of the swinging frame 0, screw-shafts dd,block-chains G H I, frames J with pins i i, and the bars f, allconstructed and operating substantially as and for the purposes setforth.

In testimony that I claim the foregoing I hereunto set my hand this 7thday of March,

JOSEPH MEISSE.

Witnesses:

JOHN FENIMORE, JEAN Ls. ROBELLAZ.

